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annotate test/Other/2003-02-19-LoopInfoNestingBug.ll @ 108:1881386f7909

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use llvm.setjmp and llvm.longjmp
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 01 Feb 2016 02:57:01 +0900
parents 95c75e76d11b
children
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; LoopInfo is incorrectly calculating loop nesting! In this case it doesn't
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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2 ; figure out that loop "Inner" should be nested inside of leep "LoopHeader",
95c75e76d11b LLVM 3.4
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3 ; and instead nests it just inside loop "Top"
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4 ;
95c75e76d11b LLVM 3.4
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5 ; RUN: opt < %s -analyze -loops | \
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6 ; RUN: grep " Loop at depth 3 containing: %Inner<header><latch><exiting>"
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 ;
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8 define void @test() {
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9 br label %Top
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11 Top: ; preds = %Out, %0
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12 br label %LoopHeader
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14 Next: ; preds = %LoopHeader
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15 br i1 false, label %Inner, label %Out
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16
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17 Inner: ; preds = %Inner, %Next
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18 br i1 false, label %Inner, label %LoopHeader
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20 LoopHeader: ; preds = %Inner, %Top
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21 br label %Next
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23 Out: ; preds = %Next
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24 br i1 false, label %Top, label %Done
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26 Done: ; preds = %Out
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27 ret void
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28 }
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